------- SIZE------ CHEST---------SLEEVE
Jacket--S-------- Up to 49"--------Up to 35"
Jacket--M-------- Up to 51"--------Up to 36"
Jacket--L-------- Up to 54"---------Up to 36.5"
Jacket--XL------- Up to 56"-------- Up to 37"
Jacket--2XL----- Up to 58"-------- Up to 38"
Jacket--3XL----- Up to 60"-------- Up to 39"
Jacket--4XL----- Up to 62"-------- Up to 40"